Linear Programming Modeling and CPLEX Solving(Beijing Jiaotong University) 中国大学慕课答案2024完整版100分

对应课程:点击查看
起止时间:2021-04-26到2021-06-21
更新状态:已完结

0. Introduction Unit test for introduction

1、 The beginning of the operations research has been attributed to the ( ) in WWII.

A:Military service
B:Medical service
C:Education
D:Industry
答案: Military service

2、 The first step of using the operations research is to ( ).

A:Define the problem and gather data
B:Formulate a mathematical model
C:Develop a computer-based solution procedure
D:Test the model and refine it as needed
答案: Define the problem and gather data

3、 The last step of using the operations research is to ( ).

A:Develop a computer-based solution procedure
B:Test the model and refine it as needed
C:Prepare to apply the model
D:Implement
答案: Implement

4、 After WWII, the success of operations research spurred interest in applying operations research outside the military such as ( ).

A:Medical treatment
B:Transportation
C:Aerospace
D:Public service
答案: Medical treatment;
Transportation;
Aerospace;
Public service

5、 When we formulate a mathematical model for a problem, we should ( ).

A:Define decision variables
B:Develop the object function
C:Propose constraints
D:None of the above
答案: Define decision variables;
Develop the object function;
Propose constraints

6、 When we test the model, we should ( ).

A:Make sure there are no serious flaws
B:Make model changes if necessary
C:Do not change the model
D:None of the above
答案: Make sure there are no serious flaws;
Make model changes if necessary

7、 When we prepare to apply the model and implantation, we should ( ).

A:Install a well-documented system
B:Integrated a considerable number of computer programs
C:Provide databases and management information systems
D:Get the model, solution procedure, and operating procedures ready
答案: Install a well-documented system;
Integrated a considerable number of computer programs;
Provide databases and management information systems;
Get the model, solution procedure, and operating procedures ready

8、 We can definitely get a “right” answer from a “wrong” defined problem.

A:正确
B:错误
答案: 错误

1. Linear Programming Unit test for lecture 1

1、 What is the correct description of the following objective functions ( )?

A:To minimize the total transporting cost
B:To assume the amount of transporting goods
C:To choose the proper transportation vehicles
D:Limited by the total resources
答案: To minimize the total transporting cost

2、 How many steps are there in the simplex method? ( )

A:1
B:3
C:5
D:7
答案: 3

3、 CPLEX uses ( ) programing language.

A:Scripting
B:Official
C:Compiled
D:None of the above
答案: Scripting

4、 In CPLEX, the working space is for ( )

A:Saving the CPLEX projects
B:Saving models
C:Saving data
D:Saving settings
答案: Saving the CPLEX projects

5、 How to create an OPL project in CPLEX? ( )

A:New – File – OPL project
B:OPL project – File – New
C:File – New – OPL project
D:None of the above
答案: File – New – OPL project

6、 What is the keyword of defining decision variables in CPLEX? ( )

A:dvar
B:decision
C:variable
D:devar
答案: dvar

7、 What is the keyword of creating constraints in CPLEX? ( )

A:limited to
B:subject to
C:subject
D:with
答案: subject to

8、 A linear programming model includes ( )

A:Decision variables
B:Object function
C:Constraints
D:Programming
答案: Decision variables;
Object function;
Constraints

9、 A linear model includes ( )?

A:Multiplication among decision variables
B:Division among decision variables
C:Plus among decision variables
D:Minus among decision variables
答案: Plus among decision variables;
Minus among decision variables

10、 What are the steps in the graphic method ( )?

A:Draw the feasible domains
B:Draw the objective function line
C:Move the objective function in parallel
D:None of the above
答案: Draw the feasible domains;
Draw the objective function line;
Move the objective function in parallel

11、 What is the keyword of developing objective functions in CPLEX? ( )

A:minimize
B:maximize
C:min
D:max
答案: minimize;
maximize

12、 A standard linear programming model is to maximize an objective function. ( )

A:正确
B:错误
答案: 错误

13、 A standard linear programming model has inequalities in the constraints. ( )

A:正确
B:错误
答案: 错误

14、 The simplex method requires a linear programming model to be a standard model ( ).

A:正确